Home / 20,055.60-27,677.07-10,981.76

Finding the Fourth Proportional to 20,055.60, 27,677.07 and 10,981.76

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Solution

The fourth proportional to 20,055.60, 27,677.07 and 10,981.76 is: 15,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.60 : 27,677.07 = 10,981.76 : x
  2. Step 2: Convert to fraction form
    20,055.60/27,677.07 = 10,981.76/x
  3. Step 3: Cross multiply
    20,055.60x = 27,677.07 × 10,981.76
  4. Step 4: Simplify right side
    20,055.60x = 303,942,940.24
  5. Step 5: Solve for x
    x = 303,942,940.24/20,055.60
  6. Step 6: Final answer
    x = 15,155.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.